To use these Heroes of Goo Jit Zu Minecraft figures, simply start squeezing and stretching them. You can stretch them up to 3 times their size and watch them bounce back. Try to find the hidden pieces inside by squishing and feeling through the goo. When playing, be careful not to pull too hard or the figure might tear. Also, avoid exposing the figures to sharp objects. To maintain these figures, keep them clean. If they get dirty, you can gently wipe them with a soft, damp cloth. Don't submerge them in water as it might damage the goo inside. Store them in a cool, dry place when not in use to keep their shape and texture intact.